I keep forgetting to ask this, but Neogenesis, why do you keep acting like Greenie's healing power is bad?
Yes, she doesn't have as good a healing formula, but right now mine heals ~5000 HP. My party's HP, starting with my two tanks, is 4515, 5161, 5309, 3600, 4963 (Reimu), 4435, 4857, 1867 (Patchy), 3935 (herself), 3186 (Marisa), 4163 (Chen), and 7197 (Meiling).
Out of those only the last one, Meiling, is not either fully healed or close to fully healed from one cast, and even then it's only 2000 damage that Meiling can restore to herself if she's ever out (which she's normally not... she's my backup tank after all).
I'm aware of all Minoriko's advantages, but honestly, I don't think either is directly superior to the other... I'd say they're both on par with one another and the one you use should depend entirely on your team setup (if not both... never hurts to have more than one healer after all).